Inheritance Cycle: Complete Set of 4 hardcover volumes with Eragon, Eldest, Brisingr, and Inheritance 
2003-2011, Alfred A. Knopf, Hardcover with dust jacket. 
See below for specifics on each volume.

Eragon (2003, BOTM)
Fifteen-year-old Eragon believes that he is merely a poor farm boy—until his destiny as a Dragon Rider is revealed. Eragon is soon swept into a dangerous tapestry of magic, glory, and power. Now his choices could save—or destroy—the Empire.

Eldest (2005, 1st Edition)
Eragon must travel to Ellésmera, land of the elves, for further training in the skills of the Dragon Rider: magic and swordsmanship. But chaos and betrayal plague him at every turn, and nothing is what it seems. Before long, Eragon doesn’t know whom he can trust.

Brisingr (2008, 1st Edition)
There is more adventure at hand for the Rider and his dragon, as Eragon finds himself bound by a tangle of promises he may not be able to keep.  When unrest claims the rebels and danger strikes from every corner, Eragon must make choices that may lead to unimagined sacrifice.

Inheritance (2011, 1st Edition)
Long months of training and battle have brought victories and hope, but they have also brought heartbreaking loss. Eragon and Saphira have come further than anyone dared to hope. But can they topple the evil king and restore justice to Alagaësia? And if so, at what cost?